Valve.



G. STAUNTON.

VALVE.

APPLICATION FILED Nov. 6, 1911.

Patented July 9, 1912.

figg.

@my mm UNITED STATES PATENT OFFICE.

GRAY STAUNTON, OF MUSKEGON, MICHIGAN.

I VALVE.

able within itself to effect sealed closure of` a vessel, from which air and gases have been removed or exhausted.

In the drawing, Figure 1 is a central vertical section of a part of the vessel and a closure with my valve applied thereto; Fig. 2 is an enlarged detail of the valve and a fragment of the closure.

In both views, the same reference charaeters indicate similar parts.

The valve herein described is an improvement on the valve shown and broadly claimed in my Patent No. 934,102, dated September 14, 1909.

In the embodiment shown herein to eX- emplify the operation and use of my invention, 5 indicates the vessel having a large open mouth and 6 is the closure therefor. A rubber band 7 is applied to an interior shoulder of the closure, by which sealing is effected between the closure and the mouth of the jar.

8 is the cylinder of an exhaust pump and 9 is the enlarged mouth thereof, provided with a yielding edge 10, which may be made of rubber, or other similar material, for making air-tight contact with the top surface of the closure, and for surrounding the valve 12, which is included Within a perforation 11 made preferably in the center of the closure.

The valve is of a hollovvr cylindrical form, provided with an interior arch partition 13, which joins the interior surfaces of the cylinder. The valve is preferably made of soft rubber and is pliable and compressible, so that the flange 14 may be inserted through the perforation 11, in applying the valve to the closure.

Specioation ot Letters Patent.

Application led November 6, 1911.

Patented July 9, 1912.

Serial No. 658,842.

and the flange 15 will seat upon the upper surface of the closure upon the down-stroke of the pump piston. After the vessel has been thus exhausted, and the pump removed7 the difference of pressure existing in the interior of the vessel and the exterior thereof will cause the bridge part 13 to be depressed and straighten out, as shown in Fig. 2, until it occupies substantially a single horizontal plane, whichl effect uniformly increases the diameter of the valve around the ent-ire circumference and causes the exterior sides thereof to make tight contact with the walls of the perforation 11, thereby completely filling the perforation with thc valve body and more thoroughly sealing the vessel against possibility of entrance of air. To break the seal, when it is desired to remove the closure 6, it. is only necessary to raise t-he flange 15 and further depress the part- 13 by means of a smooth-end instrument, such as a match or the like, thereby contracting the cylindrical part of the valve and thus permitting air to enter the vessel to release the top from the superposed pressure.

After the valve has been inserted in the closure, it remains permanently there unless purposely removed, and it is of such a character as to be easily cleaned and remains in a sanitary condition.

l/Vhile I have herein described a single embodiment. of my invention, it is obvious to persons skilled in the art that changes may be made within the scope of the claims without departing from the spirit thereof.

What I claim is:

1.. In va device of the class described, a vessel to be sealed, having a perforation, a valve in said perforation, and means associated with the valve for automatically increasing its diameter by the eieet of the 3. A pliable valve for a vessel to be sealed difference of pressure between the interior comprising a hollow cylinder, a projecting :rml the exterior of said vessel. flange at each end thereof, and an interior Q. .In combination with a Vessel to be arch-shaped Wall closing said cylinder. sealed, having n perforate Wall, a hollow e In testimony whereof I hereunto set my 15 lindricnl vulve, normally smaller than sald hand in the presence of two Witnesses. perforation, and an expanding member for GRAY STAUNTON. said valve adapted to increase the diameter In the presence ofof the valve by the effect of the difference W. LINN ALLEN,

3 0 of pressure Within and Without said Vessel. MARY F. ALLEN. 

